A Pregnant Woman States,"My Husband Hopes I Will Give Him

A pregnant woman states,"My husband hopes I will give him a boy because we have three girls." What will the nurse explain to this woman?

A) The sex chromosome of the fertilized ovum determines the gender of the child.
B) When the sperm and ovum are united,there is a 75% chance the child will be a girl.
C) When the pH of the female reproductive tract is acidic,the child will be a girl.
D) If a sperm carrying a Y chromosome fertilizes an ovum,then a boy is produced.